1. Intensifies, with "up"
2. Catalan painter Joan
3. Carbon compound
4. Suit
5. What a racehorse needs?
6. Good investment, initially
7. "The Good Book"
8. Get zero miles per gallon, so to speak
9. Like some rolls
10. Uncomfortable spot
11. A good deal
12. Arm bone
13. Bad look
18. European capital
24. Abu Dhabi pooh-bah (var.)
26. Howard of old musicals
27. Muslim ascetic
28. Say "Li'l Abner," say
29. A good deal
31. Tidal bore
32. Lofty abode (var.)
33. Caught some Z's
36. Half & half, e.g.
39. Hidden valley
40. Snooty
43. Whodunit poison
47. Drunk, in slang
49. Fishes with a dragnet
52. Pang
53. "Don't give me that!"
54. Damon of Hollywood
55. Turkish official
57. Bolted
59. Informal greeting
60. Came down
61. Cravings
64. Cooking meas.